5.1.3.30 IfcRelAssociatesClassification

RV ⓘ

AbV ⓘ

5.1.3.30.1 Semantic definition

The objectified relationship IfcRelAssociatesClassification handles the assignment of a classification item (items of the select IfcClassificationSelect) to objects occurrences (subtypes of IfcObject) or object types (subtypes of IfcTypeObject).

The relationship is used to assign a classification item, or a classification system itself to objects. Depending on the type of the RelatingClassification it is either:

a reference to an classification item within an external classification system, or
a reference to the classification system itself

The inherited attribute RelatedObjects define the objects or object types to which the classification is applied. The attribute RelatingClassification is the reference to a classification, applied to the object(s). A single RelatingClassification can thereby be applied to one or multiple objects.

5.1.3.30.2 Entity inheritance

- IfcRoot

5.1.3.30.3 Attributes

#	Attribute	Type	Description
IfcRoot (4)
1	GlobalId	IfcGloballyUniqueId	Assignment of a globally unique identifier within the entire software world.
2	OwnerHistory	OPTIONAL IfcOwnerHistory	Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, NOTE Only the last modification is stored - either as addition, deletion or modification. IFC4-CHANGE The attribute has been changed to be OPTIONAL.
3	Name	OPTIONAL IfcLabel	Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.
4	Description	OPTIONAL IfcText	Optional description, provided for exchanging informative comments.
IfcRelAssociates (1)
5	RelatedObjects	SET [1:?] OF IfcDefinitionSelect	Set of object or property definitions to which the external references or information is associated. It includes object and type objects, property set templates, property templates and property sets and contexts. IFC4-CHANGE The attribute datatype has been changed from IfcRoot to IfcDefinitionSelect.
Click to show 5 hidden inherited attributes
IfcRelAssociatesClassification (1)
6	RelatingClassification	IfcClassificationSelect	Classification applied to the objects.

Table 5.1.3.30.A

5.1.3.30.4 Concept usage

Concept	Usage	Description
IfcRoot (2)
Revision Control	General	Ownership, history, and merge state is captured using IfcOwnerHistory.
Software Identity	General	IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.
Click to show 2 hidden inherited concepts

Table 5.1.3.30.B

5.1.3.30.5 Formal representation

 ENTITY IfcRelAssociatesClassification
 SUBTYPE OF (IfcRelAssociates);
	RelatingClassification : IfcClassificationSelect;
END_ENTITY;